linux-kernel - Re: [PATCH 0/3] Add hardware dependency to TS-4800 board drivers

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Date:	Tue, 9 Feb 2016 07:16:26 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Damien Riegel <damien.riegel@...oirfairelinux.com>,
	Jean Delvare <jdelvare@...e.de>
Cc:	linux-kernel@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>,
	Wim Van Sebroeck <wim@...ana.be>
Subject: Re: [PATCH 0/3] Add hardware dependency to TS-4800 board drivers

On 02/09/2016 07:08 AM, Damien Riegel wrote:
> Hi Jean,
>
> On Tue, Feb 09, 2016 at 11:15:49AM +0100, Jean Delvare wrote:
>> Hi all,
>>
>> This adds hardware dependency to 3 drivers for the Technologic Systems
>> TS-4800 board. Thanks to these dependencies, users of other systems
>> will not accidentally enable these drivers.
>
> These drivers are for IPs implemented in an FPGA. For now it is true
> that they are used only on one board with an iMX.51 but this is not a
> strong dependency and it might change in the future if Technologic
> Systems decide to reuse these IPs on boards based on different SoCs.
>
> As the FPGA and the SoC are two separate chips, I don't know how such
> dependency should be expressed in kconfig.
>

You could add a Kconfig option for the FPGA, which currently depends
on the SoC.

Guenter